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Understanding implicit in Scala
... the implicit class in the scope you are wanting to use
import Extensions._
2.meterToCm // result 200
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Using awk to print all columns from the nth to the last
... answered Jun 2 '10 at 22:10
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How to read all files in a folder from Java?
... @NadjibMami Please have a look here: razem.io/blog/posts/year2015/0819_try_catch_lambda Was to compilcated to answer in a comment. So I wrote a quick blog post.
– Julian Pieles
Aug 19 '15 at 10:29
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Finding out whether a string is numeric or not
...rsion:
Test in playground.
import UIKit
import Foundation
func validate(_ str: String, pattern: String) -> Bool {
if let range = str.range(of: pattern, options: .regularExpression) {
let result = str.substring(with: range)
print(result)
return true
}
return ...
PHP session lost after redirect
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First, carry out these usual checks:
Make sure session_start(); is called before any sessions are being called. So a safe bet would be to put it at the beginning of your page, immediately after the opening <?php declaration before anything else. Also ensure there are no white...
Disable submit button when form invalid with AngularJS
...rmset, and therefore is required to have a name w/ a hyphen in it (like "my_formset_name-0")?
– trubliphone
Oct 7 '15 at 4:08
2
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Looping a video with AVFoundation AVPlayer?
...g movie duration longer than audio/video tracks is
the problem. FigPlayer_File is disabling gapless transition because
audio track edit is shorter than the movie duration (15.682 vs
15.787).
You need to either fix the movie files to have the movie duration and
track durations to be same...
Manipulate a url string by adding GET parameters
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Basic method
$query = parse_url($url, PHP_URL_QUERY);
// Returns a string if the URL has parameters or NULL if not
if ($query) {
$url .= '&category=1';
} else {
$url .= '?category=1';
}
More advanced
$url = 'http://example.com/search?ke...
Import multiple csv files into pandas and concatenate into one DataFrame
... as the column names.
import pandas as pd
import glob
path = r'C:\DRO\DCL_rawdata_files' # use your path
all_files = glob.glob(path + "/*.csv")
li = []
for filename in all_files:
df = pd.read_csv(filename, index_col=None, header=0)
li.append(df)
frame = pd.concat(li, axis=0, ignore_inde...
MYSQL import data from csv using LOAD DATA INFILE
...tatement should look like this:
LOAD DATA INFILE 'data.csv' INTO TABLE tbl_name
FIELDS TERMINATED BY ',' ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
IGNORE 1 LINES;
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